C++ CDateTimeSpan类代码示例

static int GetTotalSeconds(const CDateTimeSpan& ts)
{
  int hours = ts.GetHours() + ts.GetDays() * 24;
  int minutes = ts.GetMinutes() + hours * 60;
  return ts.GetSeconds() + minutes * 60;
}

void CGUIEPGGridContainerModel::Refresh(const std::unique_ptr<CFileItemList> &items, const CDateTime &gridStart, const CDateTime &gridEnd, int iRulerUnit, int iBlocksPerPage, float fBlockSize)
{
  Reset();

  ////////////////////////////////////////////////////////////////////////
  // Create programme & channel items
  m_programmeItems.reserve(items->Size());
  CFileItemPtr fileItem;
  int iLastChannelID = -1;
  ItemsPtr itemsPointer;
  itemsPointer.start = 0;
  CPVRChannelPtr channel;
  int j = 0;
  for (int i = 0; i < items->Size(); ++i)
  {
    fileItem = items->Get(i);
    if (!fileItem->HasEPGInfoTag() || !fileItem->GetEPGInfoTag()->HasPVRChannel())
      continue;

    m_programmeItems.emplace_back(fileItem);

    channel = fileItem->GetEPGInfoTag()->ChannelTag();
    if (!channel)
      continue;

    int iCurrentChannelID = channel->ChannelID();
    if (iCurrentChannelID != iLastChannelID)
    {
      if (j > 0)
      {
        itemsPointer.stop = j - 1;
        m_epgItemsPtr.emplace_back(itemsPointer);
        itemsPointer.start = j;
      }
      iLastChannelID = iCurrentChannelID;
      m_channelItems.emplace_back(CFileItemPtr(new CFileItem(channel)));
    }
    ++j;
  }
  if (!m_programmeItems.empty())
  {
    itemsPointer.stop = m_programmeItems.size() - 1;
    m_epgItemsPtr.emplace_back(itemsPointer);
  }

  /* check for invalid start and end time */
  if (gridStart >= gridEnd)
  {
    // default to start "now minus 30 minutes" and end "start plus one page".
    m_gridStart = CDateTime::GetCurrentDateTime().GetAsUTCDateTime() - CDateTimeSpan(0, 0, 30, 0);
    m_gridEnd = m_gridStart + CDateTimeSpan(0, 0, iBlocksPerPage * MINSPERBLOCK, 0);
  }
  else
  {
    m_gridStart = CDateTime(gridStart.GetYear(), gridStart.GetMonth(), gridStart.GetDay(), gridStart.GetHour(), gridStart.GetMinute() >= 30 ? 30 : 0, 0);
    m_gridEnd = CDateTime(gridEnd.GetYear(), gridEnd.GetMonth(), gridEnd.GetDay(), gridEnd.GetHour(), gridEnd.GetMinute() >= 30 ? 30 : 0, 0);
  }

  ////////////////////////////////////////////////////////////////////////
  // Create ruler items
  CDateTime ruler;
  ruler.SetFromUTCDateTime(m_gridStart);
  CDateTime rulerEnd;
  rulerEnd.SetFromUTCDateTime(m_gridEnd);
  CFileItemPtr rulerItem(new CFileItem(ruler.GetAsLocalizedDate(true)));
  rulerItem->SetProperty("DateLabel", true);
  m_rulerItems.emplace_back(rulerItem);

  const CDateTimeSpan unit(0, 0, iRulerUnit * MINSPERBLOCK, 0);
  for (; ruler < rulerEnd; ruler += unit)
  {
    rulerItem.reset(new CFileItem(ruler.GetAsLocalizedTime("", false)));
    rulerItem->SetLabel2(ruler.GetAsLocalizedDate(true));
    m_rulerItems.emplace_back(rulerItem);
  }

  FreeItemsMemory();

  ////////////////////////////////////////////////////////////////////////
  // Create epg grid
  const CDateTimeSpan blockDuration(0, 0, MINSPERBLOCK, 0);
  const CDateTimeSpan gridDuration(m_gridEnd - m_gridStart);
  m_blocks = (gridDuration.GetDays() * 24 * 60 + gridDuration.GetHours() * 60 + gridDuration.GetMinutes()) / MINSPERBLOCK;
  if (m_blocks >= MAXBLOCKS)
    m_blocks = MAXBLOCKS;

  m_gridIndex.reserve(m_channelItems.size());
  const std::vector<GridItem> blocks(m_blocks);

  for (size_t channel = 0; channel < m_channelItems.size(); ++channel)
  {
    m_gridIndex.emplace_back(blocks);

    CDateTime gridCursor(m_gridStart); //reset cursor for new channel
    unsigned long progIdx = m_epgItemsPtr[channel].start;
    unsigned long lastIdx = m_epgItemsPtr[channel].stop;
    int iEpgId            = m_programmeItems[progIdx]->GetEPGInfoTag()->EpgID();
    int itemSize          = 1; // size of the programme in blocks
    int savedBlock        = 0;
    CFileItemPtr item;
//.........这里部分代码省略.........

bool CMythDirectory::GetGuideForChannel(const CStdString& base, CFileItemList &items, int channelNumber)
{
  cmyth_database_t database = m_session->GetDatabase();
  if (!database)
  {
    CLog::Log(LOGERROR, "%s - Could not get database", __FUNCTION__);
    return false;
  }

  time_t now;
  time(&now);
  time_t end = now + (24 * 60 * 60); // How many seconds of EPG from now we should grab, 24 hours in seconds

  cmyth_program_t *program = NULL;
  // TODO: See if there is a way to just get the entries for the chosen channel rather than ALL
  int count = m_dll->mysql_get_guide(database, &program, now, end);
  CLog::Log(LOGDEBUG, "%s - %i entries in guide data", __FUNCTION__, count);
  if (count <= 0)
    return false;

  for (int i = 0; i < count; i++)
  {
    if (program[i].channum == channelNumber)
    {
      CFileItemPtr item(new CFileItem("", false)); // No path for guide entries

      /*
       * Set the FileItem meta data.
       */
      CStdString title        = program[i].title; // e.g. Mythbusters
      CStdString subtitle     = program[i].subtitle; // e.g. The Pirate Special
      CDateTime localstart;
      if (program[i].starttime)
        localstart = CTimeUtils::GetLocalTime(program[i].starttime);
      item->m_strTitle.Format("%s - %s", localstart.GetAsLocalizedTime("HH:mm", false), title); // e.g. 20:30 - Mythbusters
      if (!subtitle.IsEmpty())
        item->m_strTitle     += " - \"" + subtitle + "\""; // e.g. 20:30 - Mythbusters - "The Pirate Special"
      item->m_dateTime        = localstart;

      /*
       * Set the VideoInfoTag meta data so it matches the FileItem meta data where possible.
       */
      CVideoInfoTag* tag      = item->GetVideoInfoTag();
      tag->m_strTitle         = title;
      if (!subtitle.IsEmpty())
        tag->m_strTitle      += " - \"" + subtitle + "\""; // e.g. Mythbusters - "The Pirate Special"
      tag->m_strShowTitle     = title;
      tag->m_strOriginalTitle = title;
      tag->m_strPlotOutline   = subtitle;
      tag->m_strPlot          = program[i].description;
      // TODO: Strip out the subtitle from the description if it is present at the start?
      // TODO: Do we need to add the subtitle to the start of the plot if not already as it used to? Seems strange, should be handled by skin?
      tag->m_genre            = StringUtils::Split(program[i].category, g_advancedSettings.m_videoItemSeparator); // e.g. Sports
      tag->m_strAlbum         = program[i].callsign; // e.g. TV3

      CDateTime start(program[i].starttime);
      CDateTime end(program[i].endtime);
      CDateTimeSpan runtime = end - start;
      tag->m_duration         = runtime.GetSeconds() + runtime.GetMinutes() * 60 + runtime.GetHours() * 3600;
      tag->m_iSeason          = 0; // So XBMC treats the content as an episode and displays tag information.
      tag->m_iEpisode         = 0;

      items.Add(item);
    }
  }

  /*
   * Items are sorted as added to the list (in ascending date order). Specifying sorting by date can
   * result in the guide being shown in the wrong order for skins that sort by date in descending
   * order by default with no option to change to ascending, e.g. Confluence.
   */
  items.AddSortMethod(SORT_METHOD_NONE, 552 /* Date */, LABEL_MASKS("%K", "%J")); // Still leave the date label

  m_dll->ref_release(program);
  return true;
}

bool CCMythDirectory::GetGuideForChannel(const CStdString& base, CFileItemList &items, int channelNumber)
{
  cmyth_database_t database = m_session->GetDatabase();
  if (!database)
  {
    CLog::Log(LOGERROR, "%s - Could not get database", __FUNCTION__);
    return false;
  }

  time_t now;
  time(&now);
  // this sets how many seconds of EPG from now we should grab
  time_t end = now + (1 * 24 * 60 * 60);

  cmyth_program_t *program = NULL;

  int count = m_dll->mysql_get_guide(database, &program, now, end);
  CLog::Log(LOGDEBUG, "%s - %i entries of guide data", __FUNCTION__, count);
  if (count <= 0)
    return false;

  for (int i = 0; i < count; i++)
  {
    if (program[i].channum == channelNumber)
    {
      CStdString path;
      path.Format("%s%s", base.c_str(), program[i].title);

      CDateTime starttime(program[i].starttime);
      CDateTime endtime(program[i].endtime);

      CStdString title;
      title.Format("%s - %s", starttime.GetAsLocalizedTime("HH:mm", false), program[i].title);

      CFileItemPtr item(new CFileItem(title, false));
      item->SetLabel(title);
      item->m_dateTime = starttime;

      CVideoInfoTag* tag = item->GetVideoInfoTag();

      tag->m_strAlbum       = GetValue(program[i].callsign);
      tag->m_strShowTitle   = GetValue(program[i].title);
      tag->m_strPlotOutline = GetValue(program[i].subtitle);
      tag->m_strPlot        = GetValue(program[i].description);
      tag->m_strGenre       = GetValue(program[i].category);

      if(tag->m_strPlot.Left(tag->m_strPlotOutline.length()) != tag->m_strPlotOutline && !tag->m_strPlotOutline.IsEmpty())
          tag->m_strPlot = tag->m_strPlotOutline + '\n' + tag->m_strPlot;
      tag->m_strOriginalTitle = tag->m_strShowTitle;

      tag->m_strTitle = tag->m_strAlbum;
      if(tag->m_strShowTitle.length() > 0)
        tag->m_strTitle += " : " + tag->m_strShowTitle;

      CDateTimeSpan runtime = endtime - starttime;
      StringUtils::SecondsToTimeString( runtime.GetSeconds()
                                      + runtime.GetMinutes() * 60
                                      + runtime.GetHours() * 3600, tag->m_strRuntime);

      tag->m_iSeason  = 0; /* set this so xbmc knows it's a tv show */
      tag->m_iEpisode = 0;
      tag->m_strStatus = program[i].rec_status;
      items.Add(item);
    }
  }

  // Sort by date only.
  items.AddSortMethod(SORT_METHOD_DATE, 552 /* Date */, LABEL_MASKS("%L", "%J", "%L", ""));

  m_dll->ref_release(program);
  return true;
}

bool CPVRManager::CanSystemPowerdown(bool bAskUser /*= true*/) const
{
  bool bReturn(true);
  if (IsStarted())
  {
    CPVRTimerInfoTagPtr cause;
    if (!AllLocalBackendsIdle(cause))
    {
      if (bAskUser)
      {
        std::string text;

        if (cause)
        {
          if (cause->IsRecording())
          {
            text = StringUtils::Format(g_localizeStrings.Get(19691).c_str(), // "PVR is currently recording...."
                                       cause->Title().c_str(),
                                       cause->ChannelName().c_str());
          }
          else
          {
            // Next event is due to a local recording.

            const CDateTime now(CDateTime::GetUTCDateTime());
            const CDateTime start(cause->StartAsUTC());
            const CDateTimeSpan prestart(0, 0, cause->MarginStart(), 0);

            CDateTimeSpan diff(start - now);
            diff -= prestart;
            int mins = diff.GetSecondsTotal() / 60;

            std::string dueStr;
            if (mins > 1)
            {
              // "%d minutes"
              dueStr = StringUtils::Format(g_localizeStrings.Get(19694).c_str(), mins);
            }
            else
            {
              // "about a minute"
              dueStr = g_localizeStrings.Get(19695);
            }

            text = StringUtils::Format(g_localizeStrings.Get(19692).c_str(), // "PVR will start recording...."
                                       cause->Title().c_str(),
                                       cause->ChannelName().c_str(),
                                       dueStr.c_str());
          }
        }
        else
        {
          // Next event is due to automatic daily wakeup of PVR.
          const CDateTime now(CDateTime::GetUTCDateTime());

          CDateTime dailywakeuptime;
          dailywakeuptime.SetFromDBTime(CSettings::GetInstance().GetString(CSettings::SETTING_PVRPOWERMANAGEMENT_DAILYWAKEUPTIME));
          dailywakeuptime = dailywakeuptime.GetAsUTCDateTime();

          const CDateTimeSpan diff(dailywakeuptime - now);
          int mins = diff.GetSecondsTotal() / 60;

          std::string dueStr;
          if (mins > 1)
          {
            // "%d minutes"
            dueStr = StringUtils::Format(g_localizeStrings.Get(19694).c_str(), mins);
          }
          else
          {
            // "about a minute"
            dueStr = g_localizeStrings.Get(19695);
          }

          text = StringUtils::Format(g_localizeStrings.Get(19693).c_str(), // "Daily wakeup is due in...."
                                     dueStr.c_str());
        }

        // Inform user about PVR being busy. Ask if user wants to powerdown anyway.
        bReturn = HELPERS::DialogResponse::YES == 
          HELPERS::ShowYesNoDialogText(CVariant{19685}, // "Confirm shutdown"
                                       CVariant{text},
                                       CVariant{222}, // "Shutdown anyway",
                                       CVariant{19696}, // "Cancel"
                                       10000); // timeout value before closing
      }
      else
        bReturn = false; // do not powerdown (busy, but no user interaction requested).
    }
  }
  return bReturn;
}

CStdString CSmartPlaylistRule::GetWhereClause(CDatabase &db, const CStdString& strType) const
{
  SEARCH_OPERATOR op = m_operator;
  if ((strType == "tvshows" || strType == "episodes") && m_field == FieldYear)
  { // special case for premiered which is a date rather than a year
    // TODO: SMARTPLAYLISTS do we really need this, or should we just make this field the premiered date and request a date?
    if (op == OPERATOR_EQUALS)
      op = OPERATOR_CONTAINS;
    else if (op == OPERATOR_DOES_NOT_EQUAL)
      op = OPERATOR_DOES_NOT_CONTAIN;
  }

  CStdString operatorString, negate;
  if (GetFieldType(m_field) == TEXTIN_FIELD)
  {
    if (op == OPERATOR_DOES_NOT_EQUAL)
      negate = " NOT";
  }
  else
  {
    // the comparison piece
    switch (op)
    {
    case OPERATOR_CONTAINS:
      operatorString = " LIKE '%%%s%%'"; break;
    case OPERATOR_DOES_NOT_CONTAIN:
      negate = " NOT"; operatorString = " LIKE '%%%s%%'"; break;
    case OPERATOR_EQUALS:
      operatorString = " LIKE '%s'"; break;
    case OPERATOR_DOES_NOT_EQUAL:
      negate = " NOT"; operatorString = " LIKE '%s'"; break;
    case OPERATOR_STARTS_WITH:
      operatorString = " LIKE '%s%%'"; break;
    case OPERATOR_ENDS_WITH:
      operatorString = " LIKE '%%%s'"; break;
    case OPERATOR_AFTER:
    case OPERATOR_GREATER_THAN:
    case OPERATOR_IN_THE_LAST:
      operatorString = " > '%s'"; break;
    case OPERATOR_BEFORE:
    case OPERATOR_LESS_THAN:
    case OPERATOR_NOT_IN_THE_LAST:
      operatorString = " < '%s'"; break;
    case OPERATOR_TRUE:
      operatorString = " = 1"; break;
    case OPERATOR_FALSE:
      negate = " NOT "; operatorString = " = 0"; break;
    default:
      break;
    }
  }

  // FieldInProgress does not have any values in m_parameter, it works on the operator
  if (m_field == FieldInProgress && (strType == "movies" || strType == "episodes"))
    return "idFile " + negate + " in (select idFile from bookmark where type = 1)";

  // now the query parameter
  CStdString wholeQuery;
  for (vector<CStdString>::const_iterator it = m_parameter.begin(); it != m_parameter.end(); /* it++ is done further down */)
  {
    CStdString parameter;
    if (GetFieldType(m_field) == TEXTIN_FIELD)
    {
      CStdStringArray split;
      StringUtils::SplitString(*it, ",", split);
      for (CStdStringArray::iterator itIn = split.begin(); itIn != split.end(); ++itIn)
      {
        if (!parameter.IsEmpty())
          parameter += ",";
        parameter += db.PrepareSQL("'%s'", (*itIn).Trim().c_str());
      }
      parameter = " IN (" + parameter + ")";
    }
    else
      parameter = db.PrepareSQL(operatorString.c_str(), it->c_str());

    if (GetFieldType(m_field) == DATE_FIELD)
    {
      if (m_operator == OPERATOR_IN_THE_LAST || m_operator == OPERATOR_NOT_IN_THE_LAST)
      { // translate time period
        CDateTime date=CDateTime::GetCurrentDateTime();
        CDateTimeSpan span;
        span.SetFromPeriod(*it);
        date-=span;
        parameter = db.PrepareSQL(operatorString.c_str(), date.GetAsDBDate().c_str());
      }
    }
    else if (m_field == FieldTime)
    { // translate time to seconds
      CStdString seconds; seconds.Format("%i", StringUtils::TimeStringToSeconds(*it));
      parameter = db.PrepareSQL(operatorString.c_str(), seconds.c_str());
    }

    CStdString query;
    CStdString table;
    if (strType == "songs")
    {
      table = "songview";

      if (m_field == FieldGenre)
//.........这里部分代码省略.........

CDateTime CDateTime::operator - (const CDateTimeSpan& dts) const
{
	CDateTime dt;
	dt.m_nDateTime = m_nDateTime - dts.GetDateTimeSpan();
	return dt;
}